KR200449818Y1 - Waist supporter for dual back chair - Google Patents

Abstract

The present invention relates to a double back-type chair composed of two separate backrests, which effectively supports the user's waist, as well as a detachable chair waistrest that is extremely easy to assemble. A connecting plate having a “a” type connecting arm, one end of which is fastened by a bracket at a middle portion of the rear support plate, and a vertical through hole which is removably inserted into the other end of the connecting arm by being coupled to the connecting arm of the chair; The other end of the connecting arm is loosely fitted to the vertical through-hole of the connecting plate, so that the supporting plate is elastically supported so as to rotate left and right with respect to the chair.

       Chair, Waist

Description

Waist supporter for chair {Waist supporter for dual back chair}

The present invention relates to a chair backrest, and more particularly, to a double back chair having two backrests separated and configured to effectively support a user's waist as well as to a detachable chair backrest that is extremely easy to assemble. will be.

In general, more office workers are working in chairs in offices in modern society. However, if you sit on a chair for a long time, many people complain of pain due to a back pain, and in this case, the waist restraints (aka, cushions) are used separately to prevent back pain.

In order to supplement the above problems in recent years, as shown in Figure 1, the conventional chair (1) is formed with a seat plate (3) on the leg, and a pair of backrest frame (4) coupled with a pair of backrest (2) In addition to the seat of the basic type coupled to the seat plate (3) by the connecting rod (5), separating the coupling bolt (6) and the coupling nut (7), which is coupled to the back frame (4) and connecting rod (5), The coupling hole 12 of the coupling plate 10 of the backrest 8, which is composed of the support 9, the coupling plate 10, and the support plate 11, through the coupling hole 13 of the connection table 5. Although a chair equipped with a waist restraint (8) is commercially available by fastening with a coupling bolt (6) and a coupling nut (7), when the chair is used for a long time, it is rather inconvenient that the waist rest is mounted. It could not be easily removed, and there was a problem that recombination was also impossible without a separate tool.

 In order to solve the above problems, an object of the present invention is to provide a seat backrest for the user can be easily removable without the distinction of young and old.

Another object of the present invention is to provide a chair waist support that can flexibly rotate the user's waist from side to side in a sitting position.

In order to achieve the above object and object, the backrest for chair according to the present invention is a backrest mounted on a chair having two backrests, the backboard having a "a" type connecting arm connected by a bracket to a back support plate, and A connecting plate having a vertical through hole, which is attached to a chair connecting frame, and the connecting arm of the supporting plate is loosely fitted to the vertical through hole of the connecting plate so that the supporting plate is elastically supported to rotate left and right with respect to the chair. It is characterized by. According to a preferred embodiment of the present invention, the support plate is also available in combination in the upside down state.

Chair backrest according to the present invention configured as described above can be easily detachable as needed by anyone, men and women, since the arm can be easily combined in the loose fitting state to the vertical through-hole of the support plate And, the support plate is supported so as to rotate left and right with respect to the chair can maintain the user's waist comfortably for a long time.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the chair back waist 8 according to the present invention.

As shown in Figure 2, the backrest 14 for the chair according to the present invention is a support plate 16 coupled to the back support plate 15 on the back, one end of the bracket 17 in the middle of the back support plate 15 Is connected to the connecting arm 18 (see FIG. 1) of the chair and the other end of the connecting arm 18 is removably inserted.

The bracket 17 formed at one end of the connecting arm 18 is fastened to the rear support plate 15 by a coupling bolt nut means 20. The connecting arm 18 is a steel material having a strong elasticity and has a "a" shape. The connecting plate 19 is coupled to the connecting table 5 of the chair by the coupling bolt nut means 20 as in the prior art (see FIG. 1). In addition, the connecting plate 19 is provided with a vertical through hole 21 according to the present invention so that the other end of the connecting arm 18 (the opposite side of the bracket 17) is loosely fitted into the vertical through hole 21. Is inserted into.

As described above, the chair backrest 8 according to the present invention is one side of the connection arm 18 to the support plate 16 by the bracket 17, and the other side of the connection arm 18 is the connection of the chair ( 5) by being inserted into the vertical through-hole 21 is detachably mounted to the backrest chair is used.

Figure 3 shows a perspective view of a chair equipped with a chair waist rest 8 according to the present invention configured as described above, Figure 4 shows a side view of a chair equipped with a chair waist rest 8 according to the present invention The description thereof is omitted.

Although the present invention has been illustrated and described with respect to one exemplary embodiment, the present invention is not limited to the above-described embodiment, and those of ordinary skill in the art to which the present invention pertains are described in the Utility Model Registration Claims. Various modifications may be made without departing from the spirit of the inventive concept.

Figure 1 is a perspective view showing a state in which the backrest 8 for the chair according to the prior art is coupled.

Figure 2 is a perspective view of the back waist 14 for the chair according to the present invention.

Figure 3 is a perspective view showing a state in which the lower back support 14 for the chair according to the present invention shown in Figure 2 mounted on the chair.

Figure 4 is a side view showing a state in which the lower back support 14 for the chair according to the present invention shown in Figure 2 mounted on the chair.

           <Description of the symbols for the main parts of the drawings>

1: chair 2: backrest

3: seat 4: back frame

5: connecting rod 6: coupling bolt

7: coupling nut 8: waist support

9: support 10: binding plate

11: support plate 12: coupling hole

13: coupling hole 14: chair back support

15: back support plate 16: support plate

17: Bracket 18: connecting arm

19: connecting plate 20: bolt, nut means

21: vertical through hole

Claims (2)

The backrest is mounted on a chair with two backrests, The support plate 16 is coupled to the back support plate 15 on the back, the connecting arm 18, one end of which is fastened by the bracket 17 to the middle portion of the back support plate, and the connecting arm of the chair to be coupled to the A connecting plate 19 having a vertical through-hole 21 into which the other end is removably inserted; The support arm is coupled to the vertical through-hole (21) of the connecting plate in a loose fit state, so that the support plate (16) is elastically supported so as to rotate left and right with respect to the chair. The method of claim 1, The connecting arm (18) is a chair back, characterized in that the other end is a "b" shaped steel vertically downwards.

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